When selecting an aquarium, size matters—height, width, and length all play a crucial role. Standard glass aquariums ranging from 20 to 55 gallons typically measure 12 inches from front to back. While this narrow width accommodates artificial decorations well due to the variety of available sizes, stacking live rock in such a confined space often results in a steep, cliff-like wall. A wider aquarium—at least 18 inches front to back—provides room for deeper caves, ledges, and a more natural aesthetic. It also allows for an open sandy area in front of the rockwork, giving fish ample swimming space. Additionally, shallower tanks are easier to maintain, ensuring hassle-free cleaning and servicing while also enhancing light exposure for corals and sea anemones. Ideally, a depth of 12 to 30 inches is a great choice. Aquarium length can be a real showstopper. A six-foot tank in a home instantly draws attention—most people can’t help but say, “Wow!” If opting for a drilled aquarium, consider plumbing the equipment into a cabinet below. A larger cabinet makes it easier to house and maintain filtration and other essential components. Most saltwater hobbyists prefer tanks ranging from three to six feet in length.

Common Saltwater Aquarium Sizes:

• 65 gallons – 36" (L) x 18" (W) x 24" (H)

• 90 gallons – 48" (L) x 18" (W) x 24" (H)

• 120 gallons – 48" (L) x 24" (W) x 24" (H)

• 180 gallons – 72" (L) x 24" (W) x 24" (H)

• 210 gallons – 72" (L) x 24" (W) x 29" (H)

Acrylic aquariums are another popular choice, offering flexibility in shape and design. They come in cubes, cylinders, bow-fronts, and even custom creations—virtually any shape imaginable.

For newcomers to saltwater fishkeeping, it's best to invest in the largest aquarium their budget allows—ideally 29 gallons or more. Many hobbyists eventually purchase a second tank after realizing their first was too small.

Benefits of a Larger Aquarium:

• Greater Stability – Temperature and key water parameters remain more consistent in larger bodies of water.

• More Forgiveness – Overcrowding or overfeeding has less impact due to the increased volume.

• Expanded Livestock Options – A larger tank allows for more species, hiding spots, and ecosystem diversity.

• Accommodates Bigger Fish – Larger tanks support bigger, more active species.

• More Room for Schooling – Supports higher numbers of fish or groups of small schooling species.

A well-designed aquarium creates a stunning focal point in any space, but success hinges on using high-quality products. That's where Aquatic Experts comes in. Whether you're setting up a new tank or upgrading an existing one, investing in premium filtration, water conditioners, and accessories ensures a thriving aquatic ecosystem.

At Aquatic Experts, you'll find top-rated aquarium essentials—from high-performance filtration systems to premium water treatments—all designed to support the health and longevity of your aquatic life. Our trusted products help maintain crystal-clear water, optimal water parameters, and a balanced ecosystem that keeps your fish and corals flourishing.

Don't settle for average—give your aquarium the best. Explore our selection today and transform your tank into the perfect underwater oasis!